Perfluorononanoic acid (PFNA)
Merrimack Village District
Perfluorononanoic acid, otherwise known as PFNA or C9, is a PFC similar in function and use to PFOA. These chemicals were used in the production of non-stick, stain repellent and chemically inert coatings. Click here to read more about perfluorinated chemicals.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 7 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | 0.0520 ppt | 217 | 3 | ND - 7.30 ppt |
2017 | 0.0530 ppt | 17 | 1 | ND - 0.900 ppt |
2018 | 0.453 ppt | 44 | 33 | ND - 0.980 ppt |
2019 | 0.488 ppt | 54 | 39 | ND - 1.20 ppt |
ppt = parts per trillion
State and national drinking water standards and health guidelines
EWG Health Guideline 1 ppt
The EWG Health Guideline of 1 ppt for perfluorononanoic acid was defined by EWG based on studies by Phillipe Grandjean of Harvard University and many other independent researchers who found reduced effectiveness of vaccines and adverse impacts on mammary gland development from exposure to PFOA and PFOS, the two PFAS most widely detected in drinking water. This health guideline applies to the entire class of PFAS detected in water.
EPA Maximum Contaminant
Level (MCL) 10 ppt
ppt = parts per trillion
All test results
Date | Lab ID | Result |
---|---|---|
2014-04-14 | 35134213003AM | ND |
2014-04-14 | 35134213001AM | ND |
2014-04-22 | 35135015001AM | ND |
2014-07-14 | 35146449001AM | ND |
2014-10-07 | 35158589005AM | ND |
2014-10-07 | 35158589001AM | ND |
2014-10-07 | 35158589003AM | ND |
2015-06-15 | 35193367001AM | ND |
2016-03-09 | K1602447-004 | ND |
2016-03-09 | K1602447-002 | ND |
2016-03-09 | K1602447-003 | ND |
2016-03-09 | K1602447-001 | ND |
2016-03-31 | K1603194-005 | ND |
2016-03-31 | K1603194-001 | ND |
2016-03-31 | K1603194-004 | ND |
2016-03-31 | K1603194-002 | ND |
2016-03-31 | K1603194-006 | ND |
2016-03-31 | K1603194-003 | ND |
2016-04-07 | K1603528-002 | ND |
2016-04-07 | K1603528-003 | ND |
2016-04-07 | K1603528-004 | ND |
2016-04-07 | K1603528-001 | ND |
2016-04-07 | K1603528-005 | ND |
2016-04-14 | K1603866-003 | ND |
2016-04-14 | K1603866-006 | ND |
2016-04-14 | K1603866-002 | ND |
2016-04-14 | K1603866-004 | ND |
2016-04-14 | K1603866-005 | ND |
2016-04-14 | K1603866-001 | ND |
2016-04-21 | K1604106-005 | ND |
2016-04-21 | K1604106-001 | ND |
2016-04-21 | K1604106-004 | ND |
2016-04-21 | K1604106-006 | ND |
2016-04-21 | K1604106-003 | ND |
2016-04-21 | K1604106-002 | ND |
2016-04-28 | K1604467-005 | ND |
2016-04-28 | K1604467-001 | ND |
2016-04-28 | K1604467-002 | ND |
2016-04-28 | K1604467-006 | ND |
2016-04-28 | K1604467-003 | ND |
2016-04-28 | K1604467-004 | ND |
2016-05-05 | K1604775-004 | ND |
2016-05-05 | K1604775-006 | ND |
2016-05-05 | K1604775-001 | ND |
2016-05-05 | K1604775-002 | ND |
2016-05-05 | K1604775-003 | ND |
2016-05-05 | K1604775-005 | ND |
2016-05-12 | K1604985-001 | ND |
2016-05-12 | K1604985-003 | ND |
2016-05-12 | K1604985-004 | ND |
2016-05-12 | K1604985-005 | ND |
2016-05-12 | K1604985-006 | ND |
2016-05-12 | K1604985-002 | ND |
2016-05-19 | 1605251-04B | ND |
2016-05-19 | 1605251-06 | ND |
2016-05-19 | 1605251-03 | ND |
2016-05-19 | 1605251-04 | ND |
2016-05-19 | 1605251-02B | ND |
2016-05-19 | 1605251-03B | ND |
2016-05-19 | 1605251-02 | ND |
2016-05-19 | 1605251-01 | ND |
2016-05-19 | 1605251-05B | ND |
2016-05-19 | 1605251-01B | ND |
2016-05-19 | 1605251-05 | ND |
2016-05-19 | 1605251-06B | ND |
2016-05-26 | 1605393-01B | ND |
2016-05-26 | 1605390-01 | ND |
2016-05-26 | 1605392-01 | ND |
2016-05-26 | 1605389-01B | ND |
2016-05-26 | 1605391-01B | ND |
2016-05-26 | 1605394-01 | 2.00 ppt |
2016-05-26 | 1605392-01B | ND |
2016-05-26 | 1605389-01 | ND |
2016-05-26 | 1605390-01B | ND |
2016-05-26 | 1605391-01 | ND |
2016-05-26 | 1605393-01 | ND |
2016-05-26 | 1605394-01B | 2.00 ppt |
2016-06-02 | 1606075-01 | ND |
2016-06-02 | 1606080-01 | ND |
2016-06-02 | 1606079-01B | ND |
2016-06-02 | 1606078-01 | ND |
2016-06-02 | 1606076-01 | ND |
2016-06-02 | 1606077-01 | ND |
2016-06-02 | 1606075-01B | ND |
2016-06-02 | 1606078-01B | ND |
2016-06-02 | 1606079-01 | ND |
2016-06-02 | 1606076-01B | ND |
2016-06-02 | 1606077-01B | ND |
2016-06-02 | 1606080-01B | ND |
2016-06-09 | 1606179-01B | ND |
2016-06-09 | 1606178-01 | ND |
2016-06-09 | 1606177-01B | ND |
2016-06-09 | 1606179-01 | ND |
2016-06-09 | 1606178-01B | ND |
2016-06-09 | 1606180-01 | ND |
2016-06-09 | 1606177-01 | ND |
2016-06-09 | 1606180-01B | ND |
2016-06-16 | 1606252-01B | ND |
2016-06-16 | 1606252-01 | ND |
2016-06-16 | 1606252-02B | ND |
2016-06-16 | 1606252-04B | ND |
2016-06-16 | 1606252-04 | ND |
2016-06-16 | 1606252-03B | ND |
2016-06-16 | 1606252-02 | ND |
2016-06-16 | 1606252-03 | ND |
2016-06-23 | 1606352-01 | ND |
2016-06-23 | 1606349-01 | ND |
2016-06-23 | 1606350-01 | ND |
2016-06-23 | 1606349-01B | ND |
2016-06-23 | 1606351-01 | ND |
2016-06-23 | 1606351-01B | ND |
2016-06-23 | 1606352-01B | ND |
2016-06-23 | 1606350-01B | ND |
2016-06-30 | 1607019-01 | ND |
2016-06-30 | 1607019-01B | ND |
2016-06-30 | 1607022-01 | ND |
2016-06-30 | 1607022-01B | ND |
2016-06-30 | K1607569-002 | ND |
2016-06-30 | K1607569-003 | ND |
2016-06-30 | 1607020-01B | ND |
2016-06-30 | 1607020-01 | ND |
2016-06-30 | 1607021-01 | ND |
2016-06-30 | K1607569-001 | ND |
2016-06-30 | 1607021-01B | ND |
2016-06-30 | K1607569-004 | ND |
2016-07-07 | 1607089-01B | ND |
2016-07-07 | K1607624-002 | ND |
2016-07-07 | K1607624-005 | ND |
2016-07-07 | K1607618-002 | ND |
2016-07-07 | K1607618-003 | ND |
2016-07-07 | K1607621-001 | ND |
2016-07-07 | K1607621-003 | ND |
2016-07-07 | 1607090-01 | ND |
2016-07-07 | 1607090-01B | ND |
2016-07-07 | 1607087-01B | ND |
2016-07-07 | 1607091-01B | ND |
2016-07-07 | K1607624-003 | ND |
2016-07-07 | 1607091-01 | ND |
2016-07-07 | 1607092-01B | ND |
2016-07-07 | K1607624-004 | ND |
2016-07-07 | K1607621-004 | ND |
2016-07-07 | 1607088-01B | ND |
2016-07-07 | K1607618-001 | ND |
2016-07-07 | K1607618-004 | ND |
2016-07-07 | 1607087-01 | ND |
2016-07-07 | 1607088-01 | ND |
2016-07-07 | 1607089-01 | ND |
2016-07-07 | 1607086-01B | ND |
2016-07-07 | K1607624-001 | ND |
2016-07-07 | K1607624-006 | ND |
2016-07-07 | 1607086-01 | ND |
2016-07-07 | 1607092-01 | ND |
2016-07-07 | K1607624-007 | ND |
2016-07-14 | 1607212-01B | ND |
2016-07-14 | 1607213-01 | ND |
2016-07-14 | 1607215-01 | ND |
2016-07-14 | 1607213-01B | ND |
2016-07-14 | 1607215-01B | ND |
2016-07-14 | 1607214-01B | ND |
2016-07-14 | 1607212-01 | ND |
2016-07-14 | 1607214-01 | ND |
2016-07-21 | 1607277-01B | ND |
2016-07-21 | 1607278-01B | ND |
2016-07-21 | 1607278-01 | ND |
2016-07-21 | 1607279-01B | ND |
2016-07-21 | 1607276-01 | ND |
2016-07-21 | 1607276-01B | ND |
2016-07-21 | 1607277-01 | ND |
2016-07-21 | 1607279-01 | ND |
2016-07-28 | 1607344-01B | ND |
2016-07-28 | 1607344-01 | ND |
2016-07-28 | 1607345-01 | ND |
2016-07-28 | 1607346-01 | ND |
2016-07-28 | 1607343-01B | ND |
2016-07-28 | 1607346-01B | ND |
2016-07-28 | 1607343-01 | ND |
2016-07-28 | 1607345-01B | ND |
2016-08-04 | 1608075-02B | ND |
2016-08-04 | 1608075-01B | ND |
2016-08-04 | 1608075-04B | ND |
2016-08-04 | 1608075-03B | ND |
2016-08-18 | K1609928-003 | ND |
2016-08-18 | K1609928-004 | ND |
2016-08-18 | K1609928-001 | ND |
2016-08-18 | K1609928-002 | ND |
2016-09-01 | K1610468-001 | ND |
2016-09-01 | K1610468-002 | ND |
2016-09-01 | K1610468-003 | ND |
2016-09-07 | K1610695-001 | ND |
2016-09-15 | K1611036-003 | ND |
2016-09-15 | K1611036-001 | ND |
2016-09-15 | K1611036-002 | ND |
2016-09-15 | K1611036-004 | ND |
2016-09-29 | K1611858-004 | 7.30 ppt |
2016-09-29 | K1611858-002 | ND |
2016-09-29 | K1611858-003 | ND |
2016-09-29 | K1611858-001 | ND |
2016-10-13 | K1612679-003 | ND |
2016-10-13 | K1612679-002 | ND |
2016-10-13 | K1612679-004 | ND |
2016-10-13 | K1612679-001 | ND |
2016-10-27 | K1613253-002 | ND |
2016-10-27 | K1613253-003 | ND |
2016-10-27 | K1613253-004 | ND |
2016-10-27 | K1613253-001 | ND |
2016-11-10 | K1613978-002 | ND |
2016-11-10 | K1613978-001 | ND |
2016-11-10 | K1613978-003 | ND |
2016-11-10 | K1613978-004 | ND |
2016-11-16 | K1614222-001 | ND |
2016-11-16 | K1614222-004 | ND |
2016-11-16 | K1614222-002 | ND |
2016-11-16 | K1614222-003 | ND |
2016-12-01 | K1614633-001 | ND |
2016-12-01 | K1614633-003 | ND |
2016-12-01 | K1614633-002 | ND |
2016-12-01 | K1614633-004 | ND |
2016-12-15 | K1615281-004 | ND |
2016-12-15 | K1615281-001 | ND |
2016-12-15 | K1615281-003 | ND |
2016-12-15 | K1615281-002 | ND |
2016-12-28 | K1615500-004 | ND |
2016-12-28 | K1615500-001 | ND |
2016-12-28 | K1615500-003 | ND |
2016-12-28 | K1615500-002 | ND |
2017-01-12 | K1700420-001 | ND |
2017-01-12 | K1700420-002 | ND |
2017-01-12 | K1700420-004 | ND |
2017-01-12 | K1700420-003 | ND |
2017-01-26 | K1700898-003 | ND |
2017-01-26 | K1700898-002 | ND |
2017-01-26 | K1700898-004 | ND |
2017-01-26 | K1700898-001 | ND |
2017-02-09 | K1701387-002 | ND |
2017-02-09 | K1701387-004 | ND |
2017-02-09 | K1701387-003 | ND |
2017-02-09 | K1701387-001 | ND |
2017-03-09 | 8888465 | ND |
2017-03-09 | 8888464 | 0.900 ppt |
2017-05-10 | AB67121 | ND |
2017-05-10 | AB67111 | ND |
2017-05-10 | AB67112 | ND |
2018-02-15 | 9463596 | 0.500 ppt |
2018-02-15 | 9463598 | ND |
2018-02-15 | 9463595 | ND |
2018-02-15 | 9463597 | 0.700 ppt |
2018-03-22 | 9520793 | 0.800 ppt |
2018-03-22 | 9520791 | ND |
2018-03-22 | 9520794 | ND |
2018-03-22 | 9520792 | 0.500 ppt |
2018-04-19 | 9569128 | ND |
2018-04-19 | 9569129 | 0.430 ppt |
2018-04-19 | 9569131 | ND |
2018-04-19 | 9569130 | 0.560 ppt |
2018-05-29 | 9633894 | ND |
2018-05-29 | 9633891 | ND |
2018-05-29 | 9633892 | 0.570 ppt |
2018-05-29 | 9633893 | 0.820 ppt |
2018-06-21 | 9674400 | 0.800 ppt |
2018-06-21 | 9674402 | 0.380 ppt |
2018-06-21 | 9674399 | 0.500 ppt |
2018-06-21 | 9674401 | 0.670 ppt |
2018-07-19 | 9714348 | 0.390 ppt |
2018-07-19 | 9714345 | ND |
2018-07-19 | 9714346 | 0.680 ppt |
2018-07-19 | 9714347 | 0.640 ppt |
2018-08-23 | 9771169 | 0.980 ppt |
2018-08-23 | 9771171 | 0.490 ppt |
2018-08-23 | 9771168 | 0.480 ppt |
2018-08-23 | 9771170 | 0.920 ppt |
2018-09-19 | 9812473 | 0.910 ppt |
2018-09-19 | 9812471 | 0.500 ppt |
2018-09-19 | 9812472 | 0.760 ppt |
2018-09-19 | 9812474 | ND |
2018-10-25 | 9870339 | 0.440 ppt |
2018-10-25 | 9870341 | 0.690 ppt |
2018-10-25 | 9870340 | 0.600 ppt |
2018-10-25 | 9870342 | 0.410 ppt |
2018-11-20 | 9909747 | 0.570 ppt |
2018-11-20 | 9909746 | 0.360 ppt |
2018-11-20 | 9909749 | ND |
2018-11-20 | 9909748 | 0.580 ppt |
2018-12-20 | 9952848 | 0.410 ppt |
2018-12-20 | 9952845 | 0.540 ppt |
2018-12-20 | 9952846 | 0.660 ppt |
2018-12-20 | 9952847 | 0.680 ppt |
2019-01-17 | 9970058 | ND |
2019-01-17 | 9970056 | 0.610 ppt |
2019-01-17 | 9970057 | 0.610 ppt |
2019-01-17 | 9970055 | 0.360 ppt |
2019-02-27 | 9995195 | ND |
2019-02-27 | 9995193 | 0.660 ppt |
2019-02-27 | 9995194 | 0.700 ppt |
2019-02-27 | 9995192 | ND |
2019-03-21 | 1015516 | ND |
2019-03-21 | 1015518 | 0.710 ppt |
2019-03-21 | 1015517 | 0.640 ppt |
2019-03-21 | 1015519 | 0.360 ppt |
2019-04-18 | 1039206 | ND |
2019-04-18 | 1039204 | 0.650 ppt |
2019-04-18 | 1039205 | 0.640 ppt |
2019-04-18 | 1039203 | ND |
2019-05-23 | 1066179 | 0.680 ppt |
2019-05-23 | 1066178 | 0.820 ppt |
2019-05-23 | 1066180 | ND |
2019-05-23 | 1066177 | ND |
2019-06-14 | 1081924 | 0.380 ppt |
2019-06-14 | 1081921 | ND |
2019-06-14 | 1081922 | 0.940 ppt |
2019-06-14 | 1081923 | 0.710 ppt |
2019-07-25 | 1112056 | 1.20 ppt |
2019-07-25 | 1112055 | ND |
2019-07-25 | 1112058 | ND |
2019-07-25 | 1112057 | 0.680 ppt |
2019-08-29 | 1141764 | 0.430 ppt |
2019-08-29 | 1141761 | 0.460 ppt |
2019-08-29 | 1141762 | 0.800 ppt |
2019-08-29 | 1141763 | 0.590 ppt |
2019-09-26 | 1163104 | 0.650 ppt |
2019-09-26 | 1163105 | 0.860 ppt |
2019-09-26 | 1163106 | 0.750 ppt |
2019-09-26 | 1163107 | ND |
2019-10-22 | 1183118 | 0.680 ppt |
2019-10-22 | 1183119 | ND |
2019-10-22 | 1183120 | 0.920 ppt |
2019-10-22 | 1183121 | 0.580 ppt |
2019-10-22 | 1183122 | 0.510 ppt |
2019-11-21 | 1210356 | 0.540 ppt |
2019-11-21 | 1210357 | 0.920 ppt |
2019-11-21 | 1210358 | 0.650 ppt |
2019-11-21 | 1210359 | ND |
2019-11-21 | 1210360 | 0.480 ppt |
2019-12-04 | 1215863 | 0.880 ppt |
2019-12-04 | 1215864 | 0.600 ppt |
2019-12-04 | 1215865 | 0.520 ppt |
2019-12-19 | 1228461 | 0.700 ppt |
2019-12-19 | 1228462 | 1.20 ppt |
2019-12-19 | 1228463 | 0.780 ppt |
2019-12-19 | 1228464 | ND |
2019-12-19 | 1228465 | 0.520 ppt |